Guide · 6 min read
Preparing a Site for Construction
Site preparation runs from survey and setting out through clearance, excavation, drainage and compaction, and ends with a proven formation the builder can start on without delay.
Start with information, not machinery
The cheapest hour on any site is the one spent on drawings. A topographical survey, a site investigation or trial holes, service records and the planning conditions together determine the whole programme — access route, dig depth, foundation type, drainage outfall and where spoil can be stored.
Mobilising plant before that information exists is how sites end up double-handling material and re-digging work.
Access and site set-up
An entrance strong enough for concrete trucks and artics, a wheel-wash or road-sweeping arrangement, welfare facilities, secure fencing and a defined material laydown area are all part of preparation. On road-fronted sites, a traffic management plan is normally a planning or local authority requirement.
From clearance to proven formation
- —Setting out from the site layout, with control pegs protected outside the working area
- —Clearance and topsoil strip, with topsoil stockpiled for reuse
- —Cut-and-fill to design levels, balancing material on site where possible
- —Deep drainage and ducting installed and recorded before capping
- —Granular fill in compacted layers to formation
- —Formation inspected, tested where specified, and protected until built on
Handover to the builder
A properly prepared site is handed over level, drained, serviced, accessible in wet weather and documented. That handover pack — level records, compaction results, as-built drainage, concrete dockets — is what keeps the certification process straightforward at the end of the project.
Frequently Asked Questions
How early should a civil contractor be involved?+
As early as the drawings exist. Reviewing levels and drainage before planning is finalised often removes cost — a metre less dig across a footprint is a real saving.
Do you provide setting out?+
Yes. We set out from the engineer's and architect's drawings and maintain level control throughout the works.
Can site preparation run in phases?+
Yes, and on larger developments it usually does — enabling works and roads first, then plot-by-plot foundations as the build sequence requires.